GH3030 Bar

Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of gh3030 bar in China. If you're going to wholesale high quality gh3030 bar made in China, welcome to get free sample from our factory. Good service and reasonable price are available.

 

 

Gnee Steel is a leading Chinese manufacturer and supplier of Monel 400 alloy round bars, offering various grades, types, and sizes. Based on compositional differences, Monel alloy round bars are categorized into several grades, including 400, 450, and 500, each with varying mechanical properties. Monel alloy 400 round bars are priced lower than other grades and are one of the most widely used Monel alloy grades. Furthermore, we also offer round bars in various shapes, including round, hexagonal, square, and rectangular, to meet diverse application requirements.

 

 

At Gnee Steel, we offer high-quality GH3030 Bar in various sizes and thicknesses, and provide custom cutting, surface treatment, and global delivery services to meet your specific project needs.

Please request a price quote for GH3030 bars

 

 

Specifications : GB/T 14994

Grade: GH3030

Length : Required Length

Round Bar Diameter : 4.00 mm to 400 mm

Bright Bar : 4mm – 150mm,

Surface Finish : Black, Bright, Polished

Form : Round, Billet, Ingot, Forging Etc.

 

 

GH3030 Chemical Composition and Mechanical properties

Grade	C	Mn	P	S	Si	Cr	Fe	Al	Ti	Cu
GH3030	0.12 max	0.7 max	0.03 max	0.02 max	0.8 max	19.0 – 22.0	1.5 max	0.15 max	0.15 – 0.35	0.2 max

Element	Density (g/cm3)	Melting Point (°C)	Tensile Strength RM N/MM2	Elongation A5%
GH3030	8.4	1374-1420	≥ 590	≥ 35%

Click to download the GH3030 alloy PDF file now

 

 

We offer GH3030 bars in various conditions, from black forged surfaces for subsequent machining to high-precision centerless ground bars for CNC automation.

 

Surface Finish Options

Black Surface: Hot rolled or forged, suitable for subsequent forging.

Peeling/Turning: Removes oxide layer, suitable for rough machining.

Polishing/Grinding: H8-H11 tolerances, ideal for precision aerospace fasteners.

 

 

Precision Manufacturing: From Melting to Bar Stock

Our GH3030 bars not only meet standards but exceed them through a rigorous four-step process:

Refining: Double vacuum melting (VIM + ESR) removes trace impurities (P, S, Pb, Bi) to prevent hot brittleness during forging.

Uniform Forging: High-pressure forging breaks down dendrites, ensuring uniform and fine grain size (Grade 5 or finer).

Strict Solution Treatment: Precise 1120°C solution treatment followed by rapid water quenching ensures optimal corrosion resistance.

100% Ultrasonic Testing: All bars with a diameter exceeding 20mm undergo ultrasonic testing (Grade A/B) to guarantee the absence of internal voids or inclusions.

VIM + ESR Process

 

 

Precision is fundamental to high-temperature engineering. Gnee Steel offers GH3030 round bars with tight dimensional control, minimizing your machining allowances and material waste.

 

1. GH3030 Round Bar: Size & Theoretical Weight Chart

Note: The theoretical weight is calculated based on the density of GH3030 (8.4 g/cm³). Formula:

Weight (kg/m) = Diameter 2 (mm) × 0.006597 Weight (kg/m) = Diameter 2 (mm)× 0.006597

Diameter (mm)	Theoretical Weight ( kg/m )	Common Processing Method
8.0	0.42	Cold Drawn / Centerless Ground
12.0	0.95	Cold Drawn / Hot Rolled
20.0	2.64	Hot Rolled / Peeled
30.0	5.94	Hot Rolled / Peeled
50.0	16.50	Hot Rolled / Turned
80.0	42.22	Hot Rolled / Forged
100.0	66.00	Forged & Turned
150.0	148.43	Forged & Turned
200.0	263.88	Forged
300.0	593.73	Forged

 

 

2. GH3030 round bar dimensional tolerance standards

The tolerances for GH3030 bars depend on surface finish and manufacturing process. We offer three precision grades:

Surface Finish	Diameter Range (mm)	Tolerance (mm)	Recommended Application
Hot Rolled (Black)	10 – 60	± 0.3 to ± 0.5	Forging blanks, structural parts
Peeled / Turned	20 – 300	0 / +0.5 to +1.0	CNC machining, shafting
Centerless Ground	8 – 40	h9, h10, h11	High-precision fasteners, pins
Forged (Rough)	100 – 400	± 2.0 to ± 5.0	Large-scale heavy machinery

 

3. XH78T Bar Length and Straightness Specifications

To ensure compatibility with your automatic feeder or forging press, we offer flexible length options:

Standard Length: 3000mm – 6000mm (random length).

Fixed Length: Precisely cut to the required length according to your requirements (e.g., accurate to 2000mm), with a tolerance of 0/+5mm.

Straightness:

Standard: ≤ 2mm/meter.

Precision (Grinded Bar): ≤ 0.5mm/meter.

 

We maintain a stock of 500 tons of standard diameter bars (20mm - 120mm). Need custom diameter or hexagonal bars?

View our real-time stock of GH3030 round bars

 

 

Cost Changes 5 % extra
Export to	Delivery Time
UAE	5 days
Qatar	7
France	30
Kuwait	10
USA	40-60
Saudi Arabia	7
Oman	5
Italy	30
Uk	30

 

 

 

 

 

Q: How does the machinability of GH3030 compare to stainless steel?
A: GH3030 is a high-nickel alloy, meaning it has a higher work-hardening rate than 304/316 stainless. We recommend using carbide tools with lower cutting speeds and high-pressure coolant. It is significantly easier to machine than GH4169 (Inconel 718).

 

Q: Can I use GH3030 bars for forging? What is the temperature range?
A: Absolutely. GH3030 has excellent plasticity. The recommended initial forging temperature is 1180°C, and the final forging should stay above 900°C. It is remarkably resistant to "overburning" compared to more complex superalloys.

 

Q: What is the equivalent of GH3030 in the US or Europe?
A: GH3030 is functionally equivalent to Nimonic 75 (UNS N06075) and 2.4951. While minor element tolerances vary slightly between GB/T, ASTM, and BS standards, we can certify our material to multiple standards simultaneously.

Hot Tags: gh3030 bar, China gh3030 bar suppliers, energy alloy, manufacturing alloy, part alloy, precision alloy, tool alloy, tough alloy